exit: change zap_other_threads() to count sub-threads

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index 2ee9573ed11fe62c1b85c4fa39d7b3b5d4a355b1..906ae5a1779c8104b14b6cb2ee774d29330145a0 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1085,23 +1085,24 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 /*
  * Nuke all other threads in the group.
  */
-void zap_other_threads(struct task_struct *p)
+int zap_other_threads(struct task_struct *p)
 {
-       struct task_struct *t;
+       struct task_struct *t = p;
+       int count = 0;
 
        p->signal->group_stop_count = 0;
 
-       for (t = next_thread(p); t != p; t = next_thread(t)) {
-               /*
-                * Don't bother with already dead threads
-                */
+       while_each_thread(p, t) {
+               count++;
+
+               /* Don't bother with already dead threads */
                if (t->exit_state)
                        continue;
-
-               /* SIGKILL will be handled before any pending SIGSTOP */
                sigaddset(&t->pending.signal, SIGKILL);
                signal_wake_up(t, 1);
        }
+
+       return count;
 }
 
 struct sighand_struct *lock_task_sighand(struct task_struct *tsk, unsigned long *flags)